<%@ page import="java.util.List" %>
<%@ page import="java.util.ArrayList" %>
<%@ page import="java.sql.Connection" %>
<%@ page import="java.sql.Statement" %>
<%@ page import="java.sql.ResultSet" %>
<%@ page import="java.sql.DriverManager" %>

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>用户界面</title>
</head>
<body>
<style type="text/css">

    table {
        border: 1px solid #000;
        border-collapse: collapse;
    }

    td, th {
        border: 1px solid #000;
        padding: 10px;
    }

</style>
<h1>用户列表</h1>
<table>

    <thead>
    <tr>
        <th>编号</th>
        <th>用户名</th>
        <th>密码</th>
    </tr>
    </thead>

    <tbody>
    <%

        class User {
            int id;
            String name;
            String password;

            // alt + insert
            public User(int id, String name, String password) {
                this.id = id;
                this.name = name;
                this.password = password;
            }
        }



        List<User> list = new ArrayList<User>();



        // 3 + 1
        Connection connection = null;
        Statement statement = null;
        ResultSet resultSet = null;

        String sql = "select * from t_users";

        Class.forName("com.mysql.jdbc.Driver");

        connection = DriverManager.getConnection(
                "jdbc:mysql://localhost:3306/sctu_javaweb_2018?serverTimezone=UTC",
                "root",
                "123456"
        );

        statement = connection.createStatement();

        resultSet = statement.executeQuery(sql);

        while(resultSet.next()){

            int id = resultSet.getInt(1);
            String username = resultSet.getString(2);
            String password = resultSet.getString(3);

            User user = new User(id, username, password);
            list.add(user);

        }
        resultSet.close();
        statement.close();
        connection.close();



        for (User user : list) {

            out.write("<tr><td>" + user.id + "</td><td>" + user.name
                    + "</td><td>" + user.password + "</td></tr>");
        }

    %>

    <%--动态信息  --%>
    <jsp:include page="footer.jsp">
        <jsp:param name="year" value="2018"/>

    </jsp:include>


    </tbody>
</table>
</body>
</html>